00286nam a2200109 a 450000500170000008200200001710000060003711000250004324500620006826000250013030000210015520251203091014.0  a609.73,bD, tec  d_  aPursell, Carroll, W,  aTechnology in America: a history of individuals and ideas  aCambridgebMITc1988  axi, 264p, 23 cm.